Well, the first one was fairly choppy and some of the actions were out (for example the walking forward), also gravity had very little effect on them, as they fell slowly and stayed at the same speed.

The second one wasn't too bad, a little bit of choppiness when he was throwing the stuff, but for the overall quite smooth, if quick.

The gun shooting was quite bad, you don't hold a gun that size like that, and your hands would be in different places on the gun, it would be into your shoulder and your body would lean back a small way after each shot. Try to give the gun a flash as well, otherwise it doesn't look very realistic.

The weapons appearing from somewhere is kinda strange, you should maybe try to fade them in to get a better effect, it looks much cleaner, even if it only fades in in one frame...

Try to slow the whole thing down and try out some general movements, as his movements in that were quite hard to follow and stupidly fast,